Air cylinder



FIG. 1 is a front elevational view of an air cylinder showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a rear elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a right side elevational view;

FIG. 6 is a cross sectional view taken along the lines 6--6 of FIG. 1;

FIG. 7 is a cross sectional view taken along the lines 7--7 of FIG. 5;

FIG. 8 is a top, front and right side perspective view;

FIG. 9 is a right side elevational view of an air cylinder showing a second embodiment of my new design wherein the only difference from the embodiment shown in FIGS. 1 through 8 is the variation in length; and,

FIG. 10 is a right side elevational view of an air cylinder showing a third embodiment of my new design wherein the only difference from the embodiment shown in FIGS. 1 through 8 is the variation in length. 

The ornamental design for an air cylinder, as shown and described. 